Fuel valve



Nov, 23 1926.

. FUEL VALVE Filed June 30, 1925 Patented Nov. 23, 1926.

UNITED STATES j 1,608,170 PATsNToFFlca.

TORKILD VALDEMAR HEMMINGSEN, 0F COPENHAGEN, DENMARK.

FUEL

Application led June 30, 1925, Serial No Thisinvention relates to a fuelvalve for atomizing fuel by air pressure, such valve being applicable toDiesel motors in which `the valve is to be placed horizontallyorinclined downwardly or upwardly.

Referring now to the accompanying drawings e Figure 1 is a sectionalelevation of a fuel valve according to my invention;

Figure 2 is a perspective view on a scale of a detail of Figure 1, and pY Figure 3 is a side elevation of a Vmodified constructional form ofthedetail shown in Figure 2.

According to the invention (Figures 1 3) a plurality of flat, angular orcupshaped shelves t are arranged in front of the valve seat, reckoned inthe direction of the air current. 4 The inclination of the said shelvesrelatively to the inclination of the walls s from which they project, inthe constructional forni represented, thesurface of a ring, correspondsto the inclination of the fuel valve relatively to a vertical plane. Atthe inner end of each shelf the wall s is provided with holes u, Thefuel oil is squirted on to the shelves and the compressed air in thevalve casing a vcarries it through the holes.l u and eventually throughknown atoinizing rings y and an atomizing cone .e

larger to the compartment immediately in front'of the valve seat n andfrom there through the atomizing ring 0 to the cylinder.

In order that the fuel oil may be squirted on to the shelves t it is fedunder pressure through a channel p of the atomizing tube Z, in which thevalve vspindle m is movable, to an annular cavity g having a series ofholes r along its periphery. The circle of fuel oil jets squirtedthrough these holes is then taken up by the shelves t of the ring s.

As some fuel oils will always run down from the shelves t, the atomizingtube Z is at its lower side shaped as a cup v fitted tightr ly in thevalve casing and provided only with a perforation o: at its top throughwhich the compressed air may pass from the valve casing le to theshelves t of the ring s. The cup e gathers the oil coming from theshelves t and the oil gathered in the cup will be carried awaysuccessively with thek compressed air. As already mentioned, one or moreknown atomizing rings u and a known atomizing cone e may beplaced'behind the special atomizing ring .sf with the shelves t in thedirection of the air current.

VALVE.

. 40,678, and in Denmark January 13,1925.

i A perspective view of the ring S is shown 1n kFigure k2. Theinclination of the shelves t relatively to the surface of the ringdepends, as already stated, on theposition vin which the fuel valve hasto wor r. `When the shelves are flat, as shown in Figure 2, j care'mustbe taken that they are directed somewhat upwardly;

yFigurev 3 shows, in a modification, the.

atomizing ring'a, its shelves b having an angular cross section so thatthe fuel oil will settle in the angle as rshown at c.k

The holes u correspond with the holes'u of Figure 1 and the fuel oilprojected on to the shelves b is carried away from the latter throughthe holes u by the compressed air, the arrows cl', e indicating theVdirection of movement. The oil may pass'further through one or moreatomizing rings of suitable form and the atomizingcone to the valve seatand finally into the cylinder.

Ther shape of the shelves t or b may be varied in many ways; e. g. theymay be 'cupshaped. Care must only be taken that their shape andinclination is such that the fuel oil may rest fora while thereon.

I claim: Y y

1. A fuel valve for use in a substantially nonvertical position, forinternal combustion motors, comprising, a casing, atomizing rings in thecasingga plurality of shelves on one of the rings, projecting againstthe direction o f flow through the casing wit-h an inclination to thering dependent upon the inclination of the fuel Vvalve when in use,apertures in one of the rings adjacent and cooperating with, theshelves, a fuel inlet and an air inlet inthe casing, and means forprojecting fuel against the shelves.

2. A fuel valve for use in a substantially nonvertical position, forinternal combustion motors, comprising, a casing, atomizing rings in thecasing, a plurality of shelves on one of the rings, projecting againstthe direction of flow through the casing with an inclination to the ringdependent upon the inclination of the fuel valve when in use, aperturesin one of the rings adjacent and cooperating with, the shelves, a fuelinlet and an air inlet in the casing, means for projecting fuel againstthe shelves, and lan enclosing cup surrounding the shelves and aperturedon its upper side.

3. A fuel valve for use in a substantially nonvertical position, forinternal combustion motors, comprising, a casing, atomizing rings in thecasing, applurality of shelves on one of the rings, projecting againstthe d1- rection of flow through the casing with an inclination tothering dependent upon the` inclination of the fuel valve when in use,

apertures in one of the rings adjacent and! cooperating `With, theshelves, a fuel inlet and an air inlet inthe casing, an enclosing cupsurrounding the shelves yand apertured on its upper side, an annularchamber Within the cup, apassage connecting the annular chamber Withthefuel inlet, and' perforations" in theivall of the annular chamber forper on Tone Vof the rings, projecting against the direction of flowthrough the casing with an inclination to theringdependent upon theinclination of the fuel Valve when in use, apertuiesl in ognenof`the'rings adjacent and cooperating with, the shelves, a fuel inlet inletin the casing,and` means for projecting fuel against the shelves, theother atolnizing rings being perforated and positionedbeyond 'thesaidone ring considered in the direction of flow, an outlet seatin thecasing, and an atomizing cone betWeenthe outletl seat and the otheratomizing rings.

5;,A fuel valve for use'in a substantially nonvertical position, forinternal combustion motors, comprising, a casing, atomizing rings in thecasing, a plurality of shelves onk one of the ringsfprojecting againstthe direction of flow through th-ecasing with aninclinationV to the ringdependent upon the inclination of the fuel Valve When in Y use,apertures in one of, the rings adjacent and cooperating with, theshelves, a" fuel inlet and` an air inlet in the casing, means forprojecting fuel against the'shelves and an enclosing cup surrounding theshelves apertured on its upper side', the other atomizing .rings beingperforated and positioned beyond the said one ring considered in thedirection of How, an outlet seat in the casing, .and an atomizing conebetween the outlet seat. and the other atoinizing rings.

6, A fuel valve for use in a substantially nonvertical position, forinternal combustion motors, comprising, a casing, atomizing rings in thecasing, `a""pluralitfy of shelves on 4one of the rings,projectingagainst the direction of flow through the casing. With an inclination tothe ring'dependentupon the inclination ofthe fuel valve `when in` use,apertures in one of" the-,rings adjacent and cooperating Witln theshelves, a fuel inlet andan air inlet in the casing, an enclosing cupsurrounding` the shelves and apertured onitsupper side, afnannularchamber -within the cup, a passage'connecting the annular chamber4with the fuel inlet, and perforations in the Wallofthe annular chamberfor permitting fuel to be` projected against 4the shelves,`"the otheratoniizing ringsibeing perforated and positioned bevond the said onering considered inthe direction of flow, an outlet seat in the casing,and an atomizi'nr cone between'the outlet seat and the other atomizingrings,"

` 7; A fuel valve for use in a substantially non-vertical position, forinternalcombus tion motors, comprising, a" casing, `atomizing rings inthe casingyaplurality of ini` perforate shelves on one ofthe` rings,`projecting against the direction flow through thecasingA with anyinclination to "the ring dependent upon the inclination of the fuelvalve when in'use,` apertures in one of the rings` adjacent andcooperating With, the shelves, a fuel inlet and an air inlet inv thecasing, and means `for projecting fuel against the shelves. i

testimony whereof If aix my signature.

TORLKILD VALQEMAR HEMMINGSEN. l

